Xingfen Su,1 Handong Wang,2 Yuanxiang Presses Lin,1 Fuxiang Chen1 1Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian, People’s Republic of China; 2Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing 210002, Jiangsu, People’s Republic of